/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the License at the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apereo.portal.i18n;

import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import org.springframework.web.servlet.support.RequestContextUtils;

/**
 * This interceptor sets response locale to the value determined by localeResolver. This allows to
 * use <code>response.getLocale()</code> in order to determine the portal locale whenever request
 * object is available.
 */
public class LocaleManagementInterceptor extends HandlerInterceptorAdapter {

    @Override
    public boolean preHandle(
            HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        Locale locale = RequestContextUtils.getLocale(request);
        response.setLocale(locale);
        return true;
    }
}
